Expansion of e.g.f. exp(Sum_{k>=1} phi(k)^3 * x^k/k), where phi is the Euler totient function A000010.
A377508
Expansion of e.g.f. exp(Sum_{k>=1} phi(k)^3 * x^k/k), where phi is the Euler totient function A000010.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =20a(4) =122a(5) =2122a(6) =15532a(7) =284104a(8) =3837500a(9) =52963964a(10) =1125315224a(11) =20981180464a(12) =500475045688
External references
- oeis: A377508